How to set up an AT&T iPhone without a SIM card?

I got an AT&T iPhone 4s yesterday and I ordered the SIM card for Straight Talk but it hasn't arrived yet, so I was just wondering if there was a way I can set up the phone (add contacts, etc) without the SIM card. It won't seem to let me get past this activation process

Www.cellphonepme.co.cc

I'm pretty sure you need the SIM card installed before you can do anything.

Also, your AT&T iPhone 4s needs to be unlocked - if it's not unlocked it'll only accept AT&T SIM cards. Here's unlock info: http://www.att.com/...WALyOVfDoi

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